Measurement of beauty production in deep inelastic scattering at HERA
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 599:3-4 (2004) 173-189
Abstract:
The beauty production cross section for deep inelastic scattering events with at least one hard jet in the Breit frame together with a muon has been measured, for photon virtualities Q2>2 GeV2, with the ZEUS detector at HERA using integrated luminosity of 72 pb-1. The total visible cross section is σbb̄(ep→e jet μX)=40.9±5.7(stat.)-4.4+6. 0(syst.) pb. The next-to-leading order QCD prediction lies about 2.5 standard deviations below the data. The differential cross sections are in general consistent with the NLO QCD predictions; however at low values of Q2, Bjorken x, and muon transverse momentum, and high values of jet transverse energy and muon pseudorapidity, the prediction is about two standard deviations below the data. © 2004 Published by Elsevier B.V.Measurement of D*+- production in deep inelastic e+-p scattering at DESY HERA
Physical Review D 69 (2004) 012004 17pp
High-Q2 neutral current cross sections in e+p deep inelastic scattering at sqrt(s)=318 GeV
Physical Review D 70 (2004) 052001,22pp
Observation of isolated high-ET photons in deep inelastic scattering
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 595:1-4 (2004) 86-100
Abstract:
First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 5Bottom photoproduction measured using decays into muons in dijet events inepcollisions ats = 318 GeV
Physical Review D American Physical Society (APS) 70:1 (2004) 012008